Your tutorials have been helping me a lot (i think), can you do one on head positions with only the simplified version of the head (circle and cross) and then a detailed version with a random char face ?
You made the neck thicker. My mom asked what's so deffirent about drawing males and female heads. I told her that in most mangas the males have thicker necks and slanted eyes. While girls most the time have big eyes and tiny necks.